<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>login</title>
  </head>
  <body>

    <h1>请登录</h1>
    <form action="/checklogin" method="get">
        用户名:<input type="text" name="username"> <br />
        密码：<input type="text" name="password"> <br/>
        <input type="submit" value="提交">
    </form>
    
  </body>
</html>